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277.595v535.756A134.314 134.314 0 00180.6 947.289h669.74a134.36 134.36 0 00133.94-133.938V277.595a134.314 134.314 0 00-133.94-133.938zm33.473 267.877H147.126a33.145 33.145 0 01-33.473-33.473c0-18.752 14.72-33.473 33.473-33.473h736.687c18.752 0 33.472 14.72 33.472 33.473a33.145 33.145 0 01-33.472 33.473z"></path></svg><span><!----></span><meta property="datePublished" content="2024-03-18T08:28:52.000Z"></span><!----><span class="page-reading-time-info" aria-label="阅读时间⌛" data-balloon-pos="up"><svg xmlns="http://www.w3.org/2000/svg" class="icon timer-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="timer icon"><path d="M799.387 122.15c4.402-2.978 7.38-7.897 7.38-13.463v-1.165c0-8.933-7.38-16.312-16.312-16.312H256.33c-8.933 0-16.311 7.38-16.311 16.312v1.165c0 5.825 2.977 10.874 7.637 13.592 4.143 194.44 97.22 354.963 220.201 392.763-122.204 37.542-214.893 196.511-220.2 389.397-4.661 5.049-7.638 11.651-7.638 19.03v5.825h566.49v-5.825c0-7.379-2.849-13.981-7.509-18.9-5.049-193.016-97.867-351.985-220.2-389.527 123.24-37.67 216.446-198.453 220.588-392.892zM531.16 450.445v352.632c117.674 1.553 211.787 40.778 211.787 88.676H304.097c0-48.286 95.149-87.382 213.728-88.676V450.445c-93.077-3.107-167.901-81.297-167.901-177.093 0-8.803 6.99-15.793 15.793-15.793 8.803 0 15.794 6.99 15.794 15.793 0 80.261 63.69 145.635 142.01 145.635s142.011-65.374 142.011-145.635c0-8.803 6.99-15.793 15.794-15.793s15.793 6.99 15.793 15.793c0 95.019-73.789 172.82-165.96 177.093z"></path></svg><span>小于 1 分钟</span><meta property="timeRequired" content="PT1M"></span><span class="page-category-info" aria-label="分类🌈" data-balloon-pos="up"><svg xmlns="http://www.w3.org/2000/svg" class="icon category-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="category icon"><path d="M148.41 106.992h282.176c22.263 0 40.31 18.048 40.31 40.31V429.48c0 22.263-18.047 40.31-40.31 40.31H148.41c-22.263 0-40.311-18.047-40.311-40.31V147.302c0-22.263 18.048-40.31 40.311-40.31zM147.556 553.478H429.73c22.263 0 40.311 18.048 40.311 40.31v282.176c0 22.263-18.048 40.312-40.31 40.312H147.555c-22.263 0-40.311-18.049-40.311-40.312V593.79c0-22.263 18.048-40.311 40.31-40.311zM593.927 106.992h282.176c22.263 0 40.31 18.048 40.31 40.31V429.48c0 22.263-18.047 40.31-40.31 40.31H593.927c-22.263 0-40.311-18.047-40.311-40.31V147.302c0-22.263 18.048-40.31 40.31-40.31zM730.22 920.502H623.926c-40.925 0-74.22-33.388-74.22-74.425V623.992c0-41.038 33.387-74.424 74.425-74.424h222.085c41.038 0 74.424 33.226 74.424 74.067v114.233c0 10.244-8.304 18.548-18.547 18.548s-18.548-8.304-18.548-18.548V623.635c0-20.388-16.746-36.974-37.33-36.974H624.13c-20.585 0-37.331 16.747-37.331 37.33v222.086c0 20.585 16.654 37.331 37.126 37.331H730.22c10.243 0 18.547 8.304 18.547 18.547 0 10.244-8.304 18.547-18.547 18.547z"></path></svg><!--[--><span class="page-category-item category8" role>输入/输出</span><!--]--><meta property="articleSection" content="输入/输出"></span><!----></div><hr></div><div class="vp-toc-placeholder"><aside id="toc"><!--[--><!----><!--]--><div class="vp-toc-header">此页内容<button type="button" class="print-button" title="打印"><svg xmlns="http://www.w3.org/2000/svg" class="icon print-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="print icon"><path d="M819.2 364.8h-44.8V128c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v236.8h-44.8C145.067 364.8 96 413.867 96 473.6v192c0 59.733 49.067 108.8 108.8 108.8h44.8V896c0 17.067 14.933 32 32 32h460.8c17.067 0 32-14.933 32-32V774.4h44.8c59.733 0 108.8-49.067 108.8-108.8v-192c0-59.733-49.067-108.8-108.8-108.8zM313.6 160h396.8v204.8H313.6V160zm396.8 704H313.6V620.8h396.8V864zM864 665.6c0 25.6-19.2 44.8-44.8 44.8h-44.8V588.8c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v121.6h-44.8c-25.6 0-44.8-19.2-44.8-44.8v-192c0-25.6 19.2-44.8 44.8-44.8h614.4c25.6 0 44.8 19.2 44.8 44.8v192z"></path></svg></button><div class="arrow end"></div></div><div class="vp-toc-wrapper"><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="/mixly2.0-wiki-dist/#数字输出">数字输出</a></li><li><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="/mixly2.0-wiki-dist/#描述">描述</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="/mixly2.0-wiki-dist/#参数">参数</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="/mixly2.0-wiki-dist/#范例">范例</a></li><!----><!--]--></ul></li><!--]--></ul><div class="vp-toc-marker" style="top:-1.7rem;"></div></div><!--[--><!----><!--]--></aside></div><!--[--><!----><!--]--><div class="theme-hope-content"><h2 id="数字输出" tabindex="-1"><a class="header-anchor" href="#数字输出"><span><strong>数字输出</strong></span></a></h2><div class="vp-tabs"><div class="vp-tabs-nav" role="tablist"><button type="button" class="vp-tab-nav active" role="tab" aria-controls="tab-3-0" aria-selected="true">图形化</button><button type="button" class="vp-tab-nav" role="tab" aria-controls="tab-3-1" aria-selected="false">代码</button></div><!--[--><div class="vp-tab active" id="tab-3-0" role="tabpanel" aria-expanded="true"><div class="vp-tab-title">图形化</div><!--[--><img src="/mixly2.0-wiki-dist/assets/sw/inout/digital-pin-output.png" alt="数字输出" style="zoom:10%;"><!--]--></div><div class="vp-tab" id="tab-3-1" role="tabpanel" aria-expanded="false"><div class="vp-tab-title">代码</div><!--[--><div class="language-arduino line-numbers-mode" data-ext="arduino" data-title="arduino"><pre class="language-arduino"><code><span class="token function">digitalWrite</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span> <span class="token constant">HIGH</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">digitalWrite</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span> <span class="token constant">LOW</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><!--]--></div><!--]--></div><h3 id="描述" tabindex="-1"><a class="header-anchor" href="#描述"><span><strong>描述</strong></span></a></h3><hr><blockquote><p>给一个数字引脚写入HIGH或者LOW。</p></blockquote><h3 id="参数" tabindex="-1"><a class="header-anchor" href="#参数"><span><strong>参数</strong></span></a></h3><hr><ul><li>管脚: 引脚编号（如1，5，10，A0，A3）</li><li>值: 高 或 低</li></ul><h3 id="范例" tabindex="-1"><a class="header-anchor" href="#范例"><span><strong>范例</strong></span></a></h3><hr><p>将13号端口设置为高电平，延迟一秒，然后设置为低电平，再延迟一秒，如此往复。</p><div class="vp-tabs"><div class="vp-tabs-nav" role="tablist"><button type="button" class="vp-tab-nav active" role="tab" aria-controls="tab-43-0" aria-selected="true">图形化</button><button type="button" class="vp-tab-nav" role="tab" aria-controls="tab-43-1" aria-selected="false">代码</button></div><!--[--><div class="vp-tab active" id="tab-43-0" role="tabpanel" aria-expanded="true"><div class="vp-tab-title">图形化</div><!--[--><img src="/mixly2.0-wiki-dist/assets/sw/inout/digital-pin-output-example.png" alt="数字输出示例" style="zoom:10%;"><!--]--></div><div class="vp-tab" id="tab-43-1" role="tabpanel" aria-expanded="false"><div class="vp-tab-title">代码</div><!--[--><div class="language-arduino line-numbers-mode" data-ext="arduino" data-title="arduino"><pre class="language-arduino"><code><span class="token keyword">void</span> <span class="token keyword">setup</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
  <span class="token function">pinMode</span><span class="token punctuation">(</span><span class="token number">13</span><span class="token punctuation">,</span> <span class="token constant">OUTPUT</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token keyword">void</span> <span class="token keyword">loop</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
  <span class="token function">digitalWrite</span><span class="token punctuation">(</span><span class="token number">13</span><span class="token punctuation">,</span><span class="token constant">HIGH</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
  <span class="token function">delay</span><span class="token punctuation">(</span><span class="token number">1000</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
  <span class="token function">digitalWrite</span><span class="token punctuation">(</span><span class="token number">13</span><span class="token punctuation">,</span><span class="token constant">LOW</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
  <span class="token function">delay</span><span class="token punctuation">(</span><span class="token number">1000</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><!--]--></div><!--]--></div><div class="hint-container warning"><p class="hint-container-title">注意</p><p>数字13号引脚难以作为数字输入使用，因为大部分的控制板上使用了一颗LED与一个电阻连接到他。如果启动了内部的20K上拉电阻，他的电压将在1.7V左右，而不是正常的5V，因为板载LED串联的电阻把他使他降了下来，这意味着他返回的值总是LOW。如果必须使用数字13号引脚的输入模式，需要使用外部上拉下拉电阻</p></div></div><!--[--><!----><!--]--><footer class="page-meta"><div class="meta-item edit-link"><a href="https://gitee.com/mixly2/mixly2.0-wiki/edit/master/src/zh/guide/Arduino板卡/001-Arduino AVR/001-输入输出/005-数字输出.md" rel="noopener noreferrer" target="_blank" aria-label="在 Gitee 上编辑此页" class="nav-link label"><!--[--><svg xmlns="http://www.w3.org/2000/svg" class="icon edit-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="edit icon"><path d="M430.818 653.65a60.46 60.46 0 0 1-50.96-93.281l71.69-114.012 7.773-10.365L816.038 80.138A60.46 60.46 0 0 1 859.225 62a60.46 60.46 0 0 1 43.186 18.138l43.186 43.186a60.46 60.46 0 0 1 0 86.373L588.879 565.55l-8.637 8.637-117.466 68.234a60.46 60.46 0 0 1-31.958 11.229z"></path><path d="M728.802 962H252.891A190.883 190.883 0 0 1 62.008 771.98V296.934a190.883 190.883 0 0 1 190.883-192.61h267.754a60.46 60.46 0 0 1 0 120.92H252.891a69.962 69.962 0 0 0-69.098 69.099V771.98a69.962 69.962 0 0 0 69.098 69.098h475.911A69.962 69.962 0 0 0 797.9 771.98V503.363a60.46 60.46 0 1 1 120.922 0V771.98A190.883 190.883 0 0 1 728.802 962z"></path></svg><!--]-->在 Gitee 上编辑此页<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!----></a></div><div class="meta-item git-info"><div class="update-time"><span class="label">上次编辑于: </span><!----></div><div class="contributors"><span class="label">贡献者: </span><!--[--><!--[--><span class="contributor" title="email: 3294713004@qq.com">王立帮</span><!--]--><!--]--></div></div></footer><nav class="vp-page-nav"><!----><a class="route-link nav-link next" href="/mixly2.0-wiki-dist/zh/guide/Arduino%E6%9D%BF%E5%8D%A1/001-Arduino%20AVR/001-%E8%BE%93%E5%85%A5%E8%BE%93%E5%87%BA/010-%E6%95%B0%E5%AD%97%E8%BE%93%E5%85%A5.html" aria-label="数字输入"><div class="hint">下一页<span class="arrow end"></span></div><div class="link">数字输入<!----></div></a></nav><!----><!--[--><!----><!--]--><!--]--></main><!--]--><!----></div><!--]--><!--]--><!--[--><!----><!--]--><!--]--></div>
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